Enviaments recents

  • DebrisInterMixing-2.3: a finite volume solver for three-dimensional debris-flow simulations with two calibration parameters. Part 2: Model validation with experiments 

    von Boetticher, A.; Turowski, J; McArdell, Brian, W; Rickenmann, Dieter; Hurlimann Ziegler, Marcel; Scheidl, Christian; Kirchner, J (2017-11)
    Article
    Accés obert
    Here, we present validation tests of the fluid dynamic solver presented in von Boetticher et al. (2016), simulating both laboratory-scale and large-scale debris-flow experiments. The new solver combines a Coulomb viscoplastic ...
  • Damage analysis of masonry structures subjected to rockfalls 

    Mavrouli, Olga Christina; Giannopoulos, P. G.; Carbonell Puigbó, Josep Maria; Syrmakezis, Costas (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    Masonry structures present substantial vulnerability to rockfalls. The methodologies for the damage quantification of masonry structures subjected to rockfalls are scarce. An analytical procedure for the damage assessment ...
  • RockGIS: a GIS-based model for the analysis of fragmentation in rockfalls 

    Matas Casado, Gerard; Lantada Zarzosa, Maria de Las Nieves; Corominas Dulcet, Jordi; Gili Ripoll, José Antonio; Ruiz Carulla, Roger; Prades Valls, Albert (2017-03-31)
    Article
    Accés obert
    A rockfall is a mass instability event frequently observed in road cuts, open pit mines and quarries, steep slopes and cliffs. After its detachment, the rock mass may disaggregate and break due to the impact with the ground ...
  • Recent debris flows in the Portainé catchment (Eastern Pyrenees, Spain): analysis of monitoring and field data focussing on the 2015 event 

    Palau, Rosa M.; Hurlimann Ziegler, Marcel; Pinyol Guamis, Jordi; Moya Sánchez, José; Victoriano, Ane; Genova, Mar; Puig i Polo, Càrol (2017-04-22)
    Article
    Accés restringit per política de l'editorial
    During the night of the 21 August 2015, a debris flow took place in one of the presently most active ravines of the Pyrenees, the Portainé torrent (Eastern Pyrenees, Spain), and caused considerable damage to the road. ...
  • A fractal fragmentation model for rockfalls 

    Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2017-06)
    Article
    Accés restringit per política de l'editorial
    The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the in situ block size distribution (IBSD) of the rock mass detached from the cliff face and the resultant rockfall block size distribution ...
  • Comparing rockfall scar volumes and kinematically detachable rock masses 

    Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2017-03)
    Article
    Accés restringit per política de l'editorial
    Scenario-based risk assessment for rockfalls, requires assumptions for different scenarios of magnitude (volume). The magnitude of such instabilities is related to the properties of the jointed rock mass, with the ...
  • Critical rainfall conditions for the initiation of torrential flows: results from the Rebaixader catchment (Central Pyrenees) 

    Abanco Martínez de Arenzana, Claudia; Hurlimann Ziegler, Marcel; Moya Sánchez, José; Berenguer Ferrer, Marc (Elsevier, 2016-10)
    Article
    Accés restringit per política de l'editorial
    Torrential flows like debris flows or debris floods are fast movements formed by a mix of water and different amounts of unsorted solid material. They generally occur in steep torrents and pose high risk in mountainous ...
  • Flash floods, hydro-geomorphic response and risk management 

    Braud, I; Borga, M; Gourley, J; Hurlimann Ziegler, Marcel; Zappa, M; Gallart, Francesc (Elsevier, 2016-10)
    Article
    Accés restringit per política de l'editorial
  • Methods of data processing for debris flow seismic warning 

    Arattano, Massimo; Coviello, V; Abanco Martínez de Arenzana, Claudia; Hurlimann Ziegler, Marcel; McArdell, Brian, W (2016-08)
    Article
    Accés restringit per política de l'editorial
    The output of the seismic devices commonly employed for the monitoring of debris flows, such as geophones and seismometers, is a voltage that is directly proportional to the ground vibration velocity. The output signal in ...
  • Debris-flow monitoring for the set-up of a warning and alarm system: experiences from the pyrenees 

    Hurlimann Ziegler, Marcel; Abanco Martínez de Arenzana, Claudia; Moya Sánchez, José; Berenguer Ferrer, Marc; Vilajosana, Ignasi (2016-08)
    Article
    Accés restringit per política de l'editorial
    Debris-flow monitoring sites provide many important inputs on their mechanics and strongly improved the understanding on this hazardous process. Monitoring data are the basis for future early warning systems (EWS) and alarm ...

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